Don't warn of expiration reported the new way if it's more than a week from
now, for consistency with the code that handles expiration times reported the
old way.

diff -up krb5-1.8/src/lib/krb5/krb/gic_pwd.c.exp_warn krb5-1.8/src/lib/krb5/krb/gic_pwd.c
--- krb5-1.8/src/lib/krb5/krb/gic_pwd.c.exp_warn	2010-03-05 11:04:10.000000000 -0500
+++ krb5-1.8/src/lib/krb5/krb/gic_pwd.c	2010-03-05 11:04:10.000000000 -0500
@@ -407,7 +407,8 @@ cleanup:
                                  delta / 86400, ts);
                     /* ignore an error here */
                     /* PROMPTER_INVOCATION */
-                    (*prompter)(context, data, 0, banner, 0, 0);
+                    if (delta < 86400 * 7)
+                        (*prompter)(context, data, 0, banner, 0, 0);
                 }
         }
     }